DenisC8
Power User
yes it is, Z51 get better acceleration but lower top speed
Interesting mod
- Thread starter Murray20c8
- Start date
Base Stingray ratio is 4.9:1, the Z51 is 5.2:1
4.9 will give better acceleration. Z51 top speed is lower due to rear spoiler.
Tell you what, someone with a Z51 take your car up to 188km in 4th gear, shift to 5th and report your findings here..
Everyone stop worrying about the gear ratio and non vs z51. The point is that the car doesn't pull hard in 5th. Throw an anchor out, pull chute, drag a colony of Raccoons behind you, the car stops pulling. Jesus I might go on vacation again....
- Thread starter
- #27
Gear ratio has a ton to do with it, but you being a raccoon wouldn't know that.
- Thread starter
- #29
You should talk! LOL. Those who live in glass houses should not throw stones.
I can neither confirm or deny that I have done speeds in excess of 200 KM/h
Many of us have real world experience and done many things.
Ok, so how does car feel in 5th gear at speed. Do you feel the incredible acceleration or are you disappointed in the lack of pull...
- Thread starter
- #31
I'm happy with my car and I didn't say it was me in my C8. I also wasn't referring to a particular top speed. All I said was gearing matters. Any car hits a wall eventually. Whether it's the air it has to split or runs out of gears. Every increase in speed requires slightly more power. Plus it's logarithmic.
It is logarithmic... for the C7 M7, as well. 5th gear will take you to my C7's top speed of just under 300kph. 6th and 7th are purely gas saving gears once you get there. 4th takes me to about 244kph and 5th finishes me off....errrrrr... theoretically I mean...
.... I never use 7th gear. At legal hwy speeds, 6th gear gives me amazing fuel mileage and I still have acceleration as needed for typical driving. If I need to get up and go in a real hurry, 3rd is an easy shift from 6th and will take me from 110kph to 170kph in a blink of an eye.
DenisC8
Power User
@Jack Raccoon! 's observation is correct, as I have experienced the same. There is nothing wrong with the gear ratios of the C8 as both C8, every other corvette and any vehicle with an internal combustion engine with a transmission will experiance decreased acceleration in higher gears.
take peak C8 stingray TQ of 465ft lb X by 1st gear ratio (2.91) X rear end ratio (5.71) = 7,727 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 3rd gear ratio (1.22) X rear end ratio (5.71) = 3,239 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 5th gear ratio (0.65) X rear end ratio (5.71) = 1,726 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 8th gear ratio (0.33) X rear end ratio (5.71) = 876 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 1st gear ratio (2.91) X rear end ratio (5.71) = 7,727 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 3rd gear ratio (1.22) X rear end ratio (5.71) = 3,239 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 5th gear ratio (0.65) X rear end ratio (5.71) = 1,726 ft lb of TQ to the wheels - drivetrain loss
take peak C8 stingray TQ of 465ft lb X by 8th gear ratio (0.33) X rear end ratio (5.71) = 876 ft lb of TQ to the wheels - drivetrain loss
DenisC8
Power User
Wrong. The final drive ratio is just like any other gear ratio, is a torque multiplier. The bigger the ratio, the greater the torque, the quicker the acceleration
Yup. I had it backwards.
Wondering if I'm the only one who has NFI who you are talking about......
- Thread starter
- #38
I believe it's redtigers opinion that the Corvette should be revered and not treated as a utilitarian vehicle. An opinion not shared by me. If there is one thing that the C8 is short on it's luggage space. I'd get a trailer for mine if I could.Wondering if I'm the only one who has NFI who you are talking about......
Possibly, but that doesn't address my confusion on the person he refers to.........
- Thread starter
- #40
I assumed post #1. The guy who owns the car.
Similar threads
-
-
Interesting views regarding oil changes and break in- Started by Roughrider
- Replies: 1
-
-
-
